Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
65% | 35% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
65% | 35% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Total Kills Over/Under 27.5 in Game 2? | 65% |
| Total Kills Over/Under 27.5 in Game 1? | 64% |
| Game Handicap: KC (-1.5) vs Fnatic (+1.5) | 61% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| First Blood in Game 1? | 50% |
| Total Kills Over/Under 30.5 in Game 2? | 50% |
| First Blood in Game 2? | 48% |
| Total Kills Over/Under 30.5 in Game 1? | 48% |
| Total Kills Over/Under 33.5 in Game 2? | 37% |
| Total Kills Over/Under 33.5 in Game 1? | 36% |
| O/U 2.5 Games | 34% |
| Game 1 Winner | 23% |
| Game 2 Winner | 22% |
| Match Winner | 13% |
Market context
Polymarket has this Fnatic–Karmine Corp Bo3 at **23% YES** on USDC-settled, Polygon-based conditional tokens, which puts Fnatic well below a coin-flip in the current market. That price implies traders are giving Karmine Corp the clearer live edge, even though the contract only pays out on the match result and can still fall back to **50-50** if the fixture is not played, is tied, or is pushed beyond the settlement rules.
The read-through from recent head-to-heads is mixed rather than one-sided. Across 2025 and early 2026 meetings, the teams split results, with Karmine Corp winning the most recent recorded Bo3 in April 2026 and Fnatic taking some earlier regular-season series, so the market is not pricing a clean dominance case for either side[1][2][4][7]. That fits a set-up where the price is likely being driven more by current form and roster-level expectations than by raw series history alone. For Polymarket users, the practical point is that the contract only settles on the official winner once the result is confirmed on-chain, so delayed administration or a format change matters as much as the on-stage outcome.
The main catalysts to watch are the official LEC match start, any broadcast or schedule slip, and whether the series is fully completed inside the settlement window. If the game is postponed past the seven-day grace period without a winner, or is abandoned under the market rules, the contract resolves to **50-50** rather than either team outright. A last-minute team change, technical pause, or forfeiture announcement would therefore matter directly to settlement mechanics, not just to the competitive read.
Methodology
We track LoL: Fnatic vs Karmine Corp (BO3) - LEC Regular Season across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
UK Frequently Asked Questions
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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